Display controller for outputting display segment signals

Details Display controller for outputting display segment signals Display controller for outputting display segment signals

1992-04-27

1994-12-13

Weldon, Ulysses

Static information storage and retrieval

Read/write circuit

Signals

345 33, G09G 102

Patent

active

053733100

ABSTRACT:
Display data is read out from a display memory in parallel, and is temporarily held in a first shift register located near to the display memory. The display data is serially read out and transferred from the first shift register in one bit unit to a second shift register located near to an display data latch, in synchronism with a shift clock signal outputted from a shift clock controlling circuit. The display data held in the second shift register is outputted in parallel to the display data latch in accordance with a display data read signal. Thus, it is possible to reduce the increase of the number of the wiring lines extending from the display memory to the display data latch, as well as the increase of the chip area, both of which would be caused by the increase of the display segments. It is also possible to reduce the limitations related to the arrangement of the interior of the microcomputer.

REFERENCES:
patent: 3879723 (1975-04-01), Hornung
patent: 4113361 (1978-09-01), Nakano
patent: 4149151 (1979-04-01), Nagae et al.
patent: 4180813 (1979-12-01), Yoneda
patent: 4186393 (1980-01-01), Leventer
patent: 4223526 (1980-09-01), Tanaka et al.
patent: 4671616 (1987-06-01), Aoki et al.
patent: 4899140 (1990-02-01), Ito et al.
patent: 4939529 (1990-07-01), Kanayama et al.
"IMS G300 Colour Video Controller" immos, Preliminary Data pp. 73-75, 85, 93-95 Nov. 1988.

Affiliated with

Also associated with

Rating

Display controller for outputting display segment signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display controller for outputting display segment signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display controller for outputting display segment signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1196182